Internal-combustion engine.



A.D UFPY. INTERNAL GOMBUSTION ENGINE.

APPLICATION FILED 00T. 1Q, IBOQT" v Patented "Man '8, 1910.

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Patented Mar. 8,'1910.

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dllmum' ticularly toan improved Y ju'st'ed totake up Wear.V

of construction,

angements of parts -as -willbe Amore fully the inlet pipev nrnfrnrj STATES :PalnNTv onirica.

- f l ANTHONY .Darrin or PHILADELPHIA, .PENNSYLVANIA Tajaz'z'ahmtintin-66mm:

Bel ih l'rnown that' I, ANTHONY DUFFY, `a States, residing at and State'of' Pennsylvania, have invented certain new and useful Improvements in Internal Combustion Engines,

I ot'which the followmgls a specification.

internal 'combustion enfrines, and more parconstructionof pis. ton 4with improved .mount-mg' for 'the connecting'rod, whereby the parts may be ad- With these andother objects in View, the invention consists 1n certalnmovel features and combinations and ariereinafter described and pointed out'inthe- In the accompanying drawings, 'Figure 1, is Aa View inlonvitudmal section'- of the cyl- 2, is .a view in cro'sssect-ionon the line 2 -2 1s a View 1n cross section lon the line .3--3 of Fig. 1, and Fig. 4, is an 1 lenlargedf-perspective view of the spacing 1`represents-the'engine cylinder, which is inclosed in a-water jacket 2, and secured any'suitable' frar'ne work 3. 4 represents cvlindersecured by bplts 5 as shown.

passages G,

9;,4 the exhaust pipe 10, and the spark plu'g' 11- respectively. The inletpi'pe 9 and. exhaust pipe 10 are secured to the head'by means of screws or bolts 12, the in let pipe v9 being` preferably smaller than exhaust pipe 101 These pipes 9 and lQare .of elbow' form, and are internally beveled at their inner ends Aforming valve seats 13.

1-'1 is the inlet valve and 415 the outlet valve, botlr of said valves haring stems 1 6, "which project. through tubular guides 17 1n the pipes, and haring disks'. 1S. secured there-` ends, and coiled springs.

mrnear their upper 19 are positioned betweensaid disks 18 and thepipes so as to exert a normal pressure against the disks to hold 'the valves against the seats. These'yalve stems are located in 'the path of movemento cams 20 and 21 respectively, on a countershaft 22, the cam 20 55 thejcain 21 Vthe outlet valve 15, as will lmore constructedtooperate the inlet Valve 14, and

l fully hereinafter appear.

' i lily invention relates to improvements in' shaft 27 to turn eonn'tershaft the hollowwater jacketed head ot the The vhead 4 isproyide'd with three tubular 7 4andEi'respectively, to'receive washer l0 ispositionec.

'speiiaeaaon Letters Patent." -yatnted Mar; 8, 1910,v

15.1909. iser'iai Nofsazeaa. Y'

This 'connt'ershat '22 1s drlren by apair of mitergears23, one of which 1s secured upon: a shaft 24, an'd'has a large gear secured thereon. This gear.

25 -isLdriven by a'smaller gear 26 on the crank-shaft27, the latter connected'by the connecting .rod 2 8 with the-piston 29 in cylinder 1. The, gear 25 is of twice 'the diameter and twice the .number of teeth as gear 26,

so that itrequirestwo revolutions of crank-' 22 a single rer-- olutlon. l

The 'piston 29 is provided 'on itsinner -face' `with a circular extension or ring 30, having an annular groove 31, in which a packing 32 is located, and this gro-ove '31 is connected with the interior of the ring by means of a series of'perforations so that the exploded gases behind the piston will pass tl'irough the perforations 33 into the groove 31, and exert an outward pressure onthe packing to hold it tightly, against the inner tace of the cylindenand piston at all times.

The 'piston 29 adjacent its outer end is' insure z\ perfectly tight rovided-with openings '34 to receive the.

3ournal pin. 35, upon which the connecting rod 2S is mounted, and is proyided with-as uitable bushing 3G around saidjournal pin. The openings 34 are enlarged at their ends to receive in one of them the head 37 of the pin 35,

screw 39 with pin 35.

Between the' .h ead 38 and the pin 35. 'and .while the Yother opening receives a removable head 3S, which 1s secured by a f also between the connecting rod and the.

a spacing block or This' block is shown most clearly in Fig. 4, and is madec with a vcurved 'face to conform to -the curva-- ture ofthe piston', and with a flat face to' lie flush 'against the pin 35 and the. connecting' rod. This spacing block or washer 40 is also provided .with an opening to'permit the screw 39 to pass therethrough, and into a threaded socket in ,the end of -`pin 35.. ll'hen the .parts become worn so as to canse. a lateral wabbling, due to lateraltlnust this washer 40 may be removed, and another washer inserted in its plac, to compensate for the wear,

inner face of the piston,

follows: lVith -the piston downward to pinl in said just taken place,- andi/piston 29 has been, j forced to the end 'of being infposition to open the valve V.15. .A s

its stroke, the cam. 21

the piston starts on its upLstrke, cam 21 `will openV yalve 15, and the exploded gases will be forced throughthe exhaust ort 10,

When the piston completes its stro e, cam

Various slight changesmight be made inl the general ormjind arrangement of parts described withoutde artinglfrom my invention, and henceI o not restrict myself to the precise details setforthbut consider myself at liberty'to make such changes and alterations as fairly 'fallV within the spirit and scope of the claims; l

Having thus described my invention-what l claim as new and .desire-.to secure by Letters Patent is: f

1. In an internal combustion engine, the

combination 'within cyfmder and a 4crank-- shaft, of a piston i,n'the cylinder, a journal pin in said pistonl comprising said sections supported fon.opposite sides o the piston, a connecting rod connected at one; end to the crank-shaft, and at its other end located on one of said pin sections, a spacing washer between said pin sections, and

piston, and a screw passed through one of said pin sections, lthrough said spacing block and connecting the pin sections together.

Q. In an internal combustion engine, -the combination with a cylinder vand a crank shaft, of a. piston inthe cylinder, a journal assed'the exhaust valve rod,H and cam 20 will engage the inlet valve'rod,

.next up' stroke of the ress the exploded mix# two sections,

between one side of the connecting rod an'd'the,

said sections supported on, opposite sides of 'the piston, a connecting rod connected at one end 'to t-he crank-shafnland at itsiother end 'located on one of said pin sections, a spacing washer between said pin sections and i tween one side of t-lie connecting rod and the piston, and a screw passed through one of said pin sections, through said spacing block and connecting the pin sections together,and said block or washer having one fiat ace and Vone curved face, substantiallyV as set forth.

3. In an internal combustion engine, the combination. with a cylinder, of a piston in 't-lie cylinder, a journal pin iii ,said piston comprising .two sections, a 'connecting rod projecting into the pistonand having a bearing to receive one .of said 'pin sections, a spacing washer inserted between the wall of said piston and connecting rod, and between' said sections of journal pin, and a connecting device passed through one 'of said sections o tlie journal pin and through the- -spacinof Washer and through the other section oi'P the journal pin. A

4. In an internal conibustion'eiigine, the combination with a cylinder andl a cylin, drical piston in the cylinder, of a connecting rod having a lbeaiingat one end, a journal pin comprising two sections, both sections mounted n Y against the inner face 'of the piston, and a flat face positioned against' the connecting rod, and the end 'of the long journal pin secthe piston, one of said sections .Plonger than the other and projecting through tion, and a screw passed through the shorter 8,

pin-section through the spacing washer and `soreived into theend of the longer journal pin section.

l In testimony whereof I have-signed `my name to this speciication inthe presence-of 9 l two subscribing witnesses'.-

.v NTHONYIDUFF Y.

Witnesses S. W. Fos'rnn,

piston comprising two sections, l

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